Benajah j



rra STATES rPATlrrrr OFFICE.

BENAJAH J. BURNETT, 0F MOUNT VERNON, NEW YORK.

VENTI LATOR FOR HOUSES.

Specification forming part of Letters Patent No. 49,373, dated August15, 1865.

To all whom it may concern.-

Beit known that I, BENAJAH J. BURNETT, of MountVernon, in the county ofWestchester and State ot' New York, have invented certain new and usefulImprovements in Ventilators for Houses and other Buildings; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming part ot' this specification, in which- Figure l is alongitudinal vertical section through the center of the ventilatorconstructed according to myinvention. Fig. 2 is a central longitudinalhorizontal section of the same 5 and Fig. 3 is atransverse verticalsection ot' the same in the plane indicated by the line y* y* on Fig. l.

Similar letters of reference indicate corresponding parts in the severalfigures.

The nature of my invention consists in certain improvements, wherebyventilators on the principle of that which is the subject ot' my LettersPatent dated January l0, 1865, are

adapted to the walls of buildings, and provision is made for-regulatingand distributing the supply of air.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A A are the sides, B is the bottom, and C is the top, of the outsidecasing of the venti lator, which is made of a certain length to corvrespond with the thickness of the wall into which it is to be inserted,and is made of sufficient size, according to the room or building whichis to be ventilated. This casing is divided diagonally into fourtriangular compartments or air-ducts, a b c d, by the partitions cfg h,radiating from the center to the four corners, as seen in Fig. 3. Thesaid partitions extend beyond the ends of the casing, and the air-ductsa b c d are closed longitudinally by means of a square piece of a propersize being fastened to the ends of the partitions, thus causing theopenings for theingress and egress of the air to be located at thesides, the top,

`and the bottom, near the ends of the ventilator, as seen at o, Figs. 1and 2. In each end of the said air-ductsa curved deector, r, Figs. l and2, is placed to fill up the square corner, and thus to encourage theingress and egress o'f the air..

D and E are slide-valves for the purpose of closing or partly closingthe outer openings, and thus preventing air from passing through or toregulating the quantity. Although in the drawings there are but twovalves shown, yet a valve may be placed in each one of the air-ducts.The said valves are operated from within the house by means of rods n,Fig. 2.

This ventilator is placed into the walleither t horizontally or slightlyinclined, and in such manner that the openings o, on one end oftheventilator will be outside the building, the anges z of the casing to betight against the wall, and the openings on the opposite end of theventilator will be inside of the building.`

The outer end of the ventilator is provided with a shield, G, which iscurved above the upper outer opening toward the wall, so as to preventthe rain from entering into the said opening, yet at the same time airmay pass freely through it sidewise. The shield G flares outward andcurls up at the lower part, k, for the purpose of encouraging orassisting the air to enter.

The end of the ventilator which is inside of the building is providedwith an air-distribu ter, F, consisting of a perforated box projectingsidewise, and at the bottom ot' the ventilator, and it may likewise bemade to project at the top. This distributer is attached to theventilator by means of a hinge, so that it can be turned up, if-it berequired, or may be attached to it by any other suitable means. Thisdistributer will break up any sudden gust of wind which might enter theventilator, and cause the air to be spread or distributed by having itpass through the perforations. i

The ventilator may be made of quadraugular, circular, or polygonal form.

The process of' ventilation will be in the fol. t lowing manner: Whenthe wind or fresh air enters through one compartment of the venti.`lator intothe building a counter-current of heated or vitiated air willescape through` the opposite compartment of the ventilator,` and viceversa, and in this way a continual` ventif1 lation will be goingonunless Vthe. ventilato should be closed bythe valves,ashereinb/u foredescribed.

What I claim as my inventomand des; t0 ,u secure by Letters Patent, i

1. The combination,withlajventiltpnmn. i structed, arranged,and.appliediasrdesepibed, j of the regulating .valve on` valves,operating,`

substantially as andforthe purpose herein fully described.

2. The air-distributerF,in combination with the air-duets a b c d nuddetleetors r 1, subtaantially as and for/the purpose herein speci- 3.The shield G, extended over the upper I outer opening, 0, aud dedectorr, and open at the sides, substantially as and for the purpose hereinset forth.

- B. J. BURNETT.

Vitnes'ses:

J. W. COOMBS, G. W. REED.

